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Finding the Fourth Proportional to 507,266.88, 700,028.49 and 280,912.38

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Solution

The fourth proportional to 507,266.88, 700,028.49 and 280,912.38 is: 387,659.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,266.88 : 700,028.49 = 280,912.38 : x
  2. Step 2: Convert to fraction form
    507,266.88/700,028.49 = 280,912.38/x
  3. Step 3: Cross multiply
    507,266.88x = 700,028.49 × 280,912.38
  4. Step 4: Simplify right side
    507,266.88x = 196,646,669,193.71
  5. Step 5: Solve for x
    x = 196,646,669,193.71/507,266.88
  6. Step 6: Final answer
    x = 387,659.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.